Make SQLitePersistentCookieStore run on injected SequencedTaskRunners vs named BrowserThreads.

chrome/browser/net/sqlite_persistent_cookie_store.h

Index: chrome/browser/net/sqlite_persistent_cookie_store.h
diff --git a/chrome/browser/net/sqlite_persistent_cookie_store.h b/chrome/browser/net/sqlite_persistent_cookie_store.h
index bb6206d8f211ca9dc36a5b394a49ae806e5b2699..2f53868cdf5000910e8e892c9d856e0bdfed5e66 100644
--- a/chrome/browser/net/sqlite_persistent_cookie_store.h
+++ b/chrome/browser/net/sqlite_persistent_cookie_store.h
@@ -20,6 +20,7 @@ class Task;
 
 namespace base {
 class FilePath;
+class SequencedTaskRunner;
 }
 
 namespace net {
@@ -38,6 +39,8 @@ class SQLitePersistentCookieStore
   // |clear_on_exit_policy| throughout its lifetime.
   SQLitePersistentCookieStore(
       const base::FilePath& path,
+      const scoped_refptr<base::SequencedTaskRunner>& client_task_runner,
+      const scoped_refptr<base::SequencedTaskRunner>& background_task_runner,
       bool restore_old_session_cookies,
       ClearOnExitPolicy* clear_on_exit_policy);